Truck and body bolster.



PATENTED SEPT. 8, 1903.

A. LIPSGHUTZ TRUCK AND BODY BOLSTER.

APPLIUATION TILED DEC. 4, 1902.

NO MODEL.

7-2730 JrZ/zarZz/w I j l J 5 moumu. wAsumcroN.

No. 738,21i.

UNITED STATES I Patented September 8, 1903 ARTHUR LIPSOHUTZ, OF ST.LOUIS, MISSOURI.

TRUCK AND BODY BOLSTER.

SPECIFICATION forming part of Letters Patent No. 738,211, datedSeptember 8, 1903.

Application filed December 4, 1902- Serial No. 133,856. (No model.)

To all whom, it may concern.-

Be it known that I, ARTHUR LIPSCHUTZ, a resident of the city of St.Louis, State of Missouri, have invented certain new and usefulImprovements in Truck and Body Bolsters, of which the following is aspecification.

My invention relates to truck and body bolsters for railroad-cars; andthe object of my invention is to provide astrong all-metal bolster ofless weight and cost than the bolsters which are now in use, devised orinvented heretofore.

A particular object of my invention is to provide a truck or bodybolster in which ordinary rolled or structural steel shapessuch aschannel-bars, I-beams, and the likemay be employed without alteration inshape.

Another object of my invention is to provide a metal bolster comprisingtwo parallel bolster members, which though ordinarily combined in asingle bolster may be used independently, each as a light bolster.

My invention primarily consists in the combination of two channel I orother beams, preferably of commercial cross-section, with apressed-metal truss attached to the bottom of each beam and suitablemeans securing said beams parallel, making a bolster which in elevationcorresponds closely to the accepted theoretical bolster outline; and,further, my invention consists in such a pluralelement bolster whereinthe flanges of the pressed truss portions are turned inwardly, so thatthe bottom of the bolster is of less width than the top thereof; and myinvention further consists in various details of construction and incombinations of parts, all as hereinafter described, and particularlypointed out in the claims.

My invention will be more readily understood by reference to theaccompanying drawings, forming a part of this specification, and v inwhich- Figure l is an elevation of a truck and a body-bolster, eachembodying my invention. Fig. 2 is a sectional view of the bolster. Fig.is a sectional view showing a modification thereof. Fig. 4 is a similarview illustrating still another modification of my invention, and Fig. 5is an enlarged perspective view of one of. the pressed or formedtrusses.

The most practical form of my invention includes a rolled channel 2 or arolled I-beam 3, these being commercial shapes which can be readilyobtained in Various sizes as required in the manufacture of bolsters forcars of different carrying capacities. Other and different beams andshapes may be utilized within the scope of my invention, though noteconomically adapted thereto. The drawings illustrate the form ofbolster which is most common-namely, that which is made up of parallelmembers.

The gist of my invention resides in the combination of the beams 2 or 3with the trusses 4, attached to the lower flanges of the beams. I

My invention also resides in the arrangement of the beams and thetrusses with their respective webs or vertical portions in 1351.1 allelvertical planes, whereby maximum strength is secured in a minimum weightof material. The truss that I prefer to employ is Z-shaped incross-section and is an article that is pressed from sheet-steel. Inelevation the device is truss-shaped, and the lower flanges 5 followsthe truss outline. The upper flange 6, which is riveted to the lowerflange of the uniform section-beam, extends oppositely to the flange 5,and its ends 6 are preferably extended beyond the upper ends of theinclined portions 5 of the lower flange.

As pointed out in a companion divisional application, the rolled channelor other beam and the pressed flanged truss when firmly riveted togetherconstitute the complete bolster element, which upon the addition ofsuitable column-guides, such as 7, may be used as a truck-bolster for alight car. For heavier cars my bolster comprises two of these elements,the same being parallel and fastened together, as by the diaphragm-block8 and the end straps 9. The diaphragm'block or blocks are preferablyplaced at the middle of the bolster to receive the center pin or boltsof the car-truck. The lower or truck bolster is provided with atruck-center 10 on its top, the same being fastened across the topflanges of the parallel beams. The lower flanges of the trussesbelonging to the opposite beams are turned inwardly. These being flat onthe bottom afford a seat for the truckcenter 11 of the body-bolster,while in the case of the truck-bolster the same is made to possess theadvantage of being so narrow at the bottom that it may drop between thesides of the channel which comprises the crossplank of the truck. heregreat strength is required, I prefer the I-beam form of the bolster, asshown in Fig. 4, and a mediumweight bolster is made by interposing aplate 12 between the beams and the trusses and by providing the bolsterwith a cover-plate 13, these parts adding rigidity to the structure.

As it is obvious that numerous modifications of my invention and alsoadditions thereto will readily suggest themselves to one skilled in theart, I do not confine the invention to the specific constructions andcombinations of parts herein shown and described.

Having thus described my invention, 1 claim as new, and desire to secureby Letters Patent 1. The bolster, comprising the parallel beams,suitably fastened together and each provided with a relatively shorttruss, substantially as described.

2. The bolster, comprising the parallel flanged beams, suitably securedtogether, in combination, with a relatively short individual truss foreach, substantially as described.

3. The bolster, comprising the parallel flanged beams, suitably securedtogether, in combination with the relatively short inclividual flangedtruss for each beam, substantially as described.

4. The bolster, comprising the rolled-steel beams, having lateralflanges and held parallel, in combination with the pressed-steel flangedtrusses, one for each beam, the upper flanges of said trusses beingriveted to the lower flanges of respective beams, substantially asdescribed.

5. The parallel flanged steel beams, in combination, with thepressed-steel individual trusses therefor, said trusses being Z-shapedin cross section and having their upper flanges riveted to the flangesof respective beams, substantially as described.

6. The bolster, comprising the rolled-steel beams, of suitable lengthand provided with outwardly-turned flanges, in combination, with theindividual beam-trusses, each having an upper flange riveted to thelower flange of its respective beam, said trusses having inwardly-turnedbottom flanges and suitable means whereby said beams are held parallel,substantially as described.

7 The bolster, comprising the parallel flanged steel beams, incombination with the cover-plate riveted thereto, the diaphragmblock,the end fastenings and the individual Z-shaped trusses of said beams,substantially as described.

8. The bolster, comprising the rolled-steel channels of suitable lengthand rigidly connected, in combination, with the pressedsteel individualtrusses, of varying depth, the said trusses having outwardly-proj ecting 'flanges, riveted to the lower flanges of respective channel-beams andhaving inwardlyturned bottom flanges, substantially as described.

In testimony whereof I have hereunto set my hand, this 29th day ofNovember, 1902, at St. Louis, Missouri.

ARTHUR LIPSOHUTZ.

\Vitnesses:

J. H. WEIsBRoD, WM. STEVENSON.

